|Kind of Exponent||Suffix|
- The negative past tense suffix, simple negative past is <-do ~ -da> (NegPstS).
- The negative past tense perfect, perfect negative past is <-yuk ~ -yukt> (NegPstPf).
- Both <-da> (NegPstS) and <-yuk> (NegPstPf) derive from an auxiliary verb root. The difference in meaning between these operators has to do with aspect.